| 28601 | Terry Sims & Associates Inc. | | Oil Operator | Sep 2009 |
| 28602 | Terry'S Roustabout Service, Inc. | Throckmorton, TX 76483 | Oil & Gas Operator | Oct 2002 |
| 28603 | Terry, Lewis D. | Olney, TX 76374 | Oil & Gas Operator | Sep 1995 |
| 28604 | Terry, R. K. | West Columbia, TX 77486 | Oil & Gas Operator | Jul 2026 |
| 28605 | Tervita, LLC | | Oil Operator | May 2021 |
| 28606 | Terzan Energy II LLC | Chandler, OK 74834 | Oil & Gas Operator | May 2026 |
| 28607 | Tesla Resources, Inc. | | Oil & Gas Operator | Aug 1996 |
| 28608 | Tesoro E&P Company, L.P. | San Antonio, TX 78216 | Oil & Gas Operator | Jan 2000 |
| 28609 | Tesoro Expl. & Prod. Company | San Antonio, TX 78216 | Gas Operator | Sep 2010 |
| 28610 | Tesoro Petroleum | | Oil Operator | Mar 1982 |
| 28611 | Tesoro Petroleum Corporation | | Oil & Gas Operator | May 1982 |
| 28612 | Tess Oil Company | Borger, TX 79008 | Oil & Gas Operator | Mar 2008 |
| 28613 | Tessara Petroleum Resources, LLC | Houston, TX 77086 | Oil & Gas Operator | Apr 2020 |
| 28614 | Tessera Energy LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Apr 2026 |
| 28615 | Testco Production Company | Watonga, OK 73772-0589 | Oil & Gas Operator | Aug 2013 |
| 28616 | Tesuque Oil & Gas LLC | Rockdale, TX 76567 | Oil Operator | Jul 2026 |
| 28617 | Tet Energy | | Oil Operator | Feb 2026 |
| 28618 | Teton Energy Co Inc | Denver, CO 80239 | Oil Operator | Dec 1983 |
| 28619 | Teton Petroleum Corporation | Kerrville, TX 78028 | Oil & Gas Operator | Jul 2026 |
| 28620 | Tetra Oil Company | | Oil & Gas Operator | Dec 2025 |
| 28621 | Tetragon Investments, LLC | Abilene, TX 79604 | Oil Operator | Jul 2014 |
| 28622 | Tettleton, Jon Otis | Nocona, TX 76255 | Oil & Gas Operator | Aug 2003 |
| 28623 | Tettleton, Steven B. | Nocona, TX 76255 | Oil Operator | Jul 2026 |
| 28624 | Tevebaugh MGMT Co | Baden, PA 15005-0123 | Oil & Gas Operator | Dec 2002 |
| 28625 | Tex-Am Petroleum Corp. | Eastland, TX 76448 | Oil & Gas Operator | Jul 2026 |
| 28626 | Tex-Am-Energy Inc. | Dallas, TX 75205 | Oil & Gas Operator | Mar 2008 |
| 28627 | Tex-Ann Oil & Gas Services, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Jul 2026 |
| 28628 | Tex-Atic Resources, Inc. | S. Lake Tahoe, CA 96150 | Oil & Gas Operator | Jul 2026 |
| 28629 | Tex-Con-Brehm-Basin Expl. | | Oil & Gas Operator | May 1990 |
| 28630 | Tex-Hio Energy | Terrell, TX 75156 | Oil & Gas Operator | Dec 1997 |
| 28631 | Tex-Lee Operating Company | Giddings, TX 78942 | Oil & Gas Operator | Jul 2026 |
| 28632 | Tex-Oak, Inc. | Oklahoma City, OK 73155 | Oil & Gas Operator | Dec 1995 |
| 28633 | Tex-Ok Energy, Limited Partnership | Cody, WY 82414 | Oil & Gas Operator | May 2026 |
| 28634 | Tex-Ok Energy, LTD Partnership | Cody, WY 82414 | Oil & Gas Operator | Jul 2026 |
| 28635 | Tex-R Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Feb 2021 |
| 28636 | Tex-Star Production | Dallas, TX 75206 | Oil & Gas Operator | May 2026 |
| 28637 | Tex-Well Oil & Gas Corp. | Pampa, TX 79066 | Oil & Gas Operator | Aug 2003 |
| 28638 | Tex/Con Oil & Gas Company | Houston, TX 77074 | Oil & Gas Operator | Feb 2001 |
| 28639 | Texacal, Inc. | Newport Beach, CA 92660 | Oil & Gas Operator | Jul 2026 |
| 28640 | Texaco E & P Inc. | Houston, TX 77099 | Oil & Gas Operator | Jul 2026 |
| 28641 | Texaco Explorati | | Oil & Gas Operator | Dec 1996 |
| 28642 | Texaco Exploration & Prod | Midland, TX 79702 | Oil & Gas Operator | Aug 2002 |
| 28643 | Texaco Exploration & Prod Inc | Houston, TX 77236 | Oil & Gas Operator | Mar 2026 |
| 28644 | Texaco Exploration & Production Inc N W | Farmington, NM 87401 | Oil & Gas Operator | Aug 1995 |
| 28645 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
| 28646 | Texaco Inc & A.C. Glassell Jr | | Oil & Gas Operator | Aug 1980 |
| 28647 | Texaco Oils Inc | Tulsa, OK 74102-2420 | Oil & Gas Operator | Jan 2003 |
| 28648 | Texaco Producing Inc. | Rock Springs, WY 82901 | Oil & Gas Operator | Dec 2000 |
| 28649 | Texaco Seaboard, Inc. | | Gas Operator | Sep 1980 |
| 28650 | Texaco USA - Mor | | Oil Operator | Aug 1988 |
| 28651 | Texada Resources, Inc. | | Oil & Gas Operator | Dec 1992 |
| 28652 | Texakoma E & P, LLC | Plano, TX 75024 | Oil & Gas Operator | Jul 2026 |
| 28653 | Texakoma Exploration & Production LLC | Plano, TX 75024 | Oil & Gas Operator | May 2026 |
| 28654 | Texakoma Oil & Gas Corp | Dallas, TX 75240 | Oil & Gas Operator | Sep 2014 |
| 28655 | Texakoma Operating, L.P. | Plano, TX 75024 | Oil & Gas Operator | Mar 2025 |
| 28656 | Texakoma Opr LP | Plano, TX 75024-6679 | Oil & Gas Operator | Dec 2012 |
| 28657 | Texakota | | Oil & Gas Operator | Mar 1995 |
| 28658 | Texakota, Inc. | Houston, TX 77098 | Oil & Gas Operator | Mar 2021 |
| 28659 | Texan Petroleum Corporation | Dallas, TX 75204 | Oil & Gas Operator | Oct 2004 |
| 28660 | Texan Production | Pearsall, TX 78061 | Oil & Gas Operator | Aug 2003 |
| 28661 | Texan Production Company, Inc. | Canyon Lake, TX 78133 | Oil & Gas Operator | Jul 2026 |
| 28662 | Texana Operating Company | Houston, TX 77090 | Oil & Gas Operator | Jul 2026 |
| 28663 | Texas American Oil Corporation | Midland, TX 79701 | Oil & Gas Operator | Jan 2001 |
| 28664 | Texas American Resources Company | Austin, TX 78701 | Oil & Gas Operator | Jul 2026 |
| 28665 | Texas City Refining, Inc. | | Oil & Gas Operator | Nov 1988 |
| 28666 | Texas Coastal Resources LLC | Fairhope, AL 36532 | Oil Operator | Jul 2026 |
| 28667 | Texas Concho Operating Co. | Eldorado, TX 76936 | Oil & Gas Operator | Mar 1999 |
| 28668 | Texas Consolidated Pet. Corp. | Fort Worth, TX 76109 | Oil & Gas Operator | Jul 2026 |
| 28669 | Texas Crude & Dale Gas Expl | | Oil & Gas Operator | Dec 1984 |
| 28670 | Texas Crude Energy, Inc. | Houston, TX 77256 | Oil & Gas Operator | Oct 2012 |
| 28671 | Texas Crude Exploration Inc | Fort Worth, TX 76116 | Oil & Gas Operator | Aug 1992 |
| 28672 | Texas Crude Oil Co. | | Oil & Gas Operator | Dec 1984 |
| 28673 | Texas Crude Oil Co. Et Al | | Oil & Gas Operator | May 1992 |
| 28674 | Texas Crude Oil, Inc. | | Oil & Gas Operator | Dec 1984 |
| 28675 | Texas Crude Operator, Inc. | Houston, TX 77098 | Oil & Gas Operator | Aug 2017 |
| 28676 | Texas Crude, Inc. | Houston, TX 77256 | Oil & Gas Operator | Oct 1995 |
| 28677 | Texas Crude-Rebstock & Reeves | | Oil & Gas Operator | Feb 1980 |
| 28678 | Texas Crude-Wainoco-Hilliard | | Oil & Gas Operator | Jul 1978 |
| 28679 | Texas Eastern Skyline Oil | Houston, TX 77252 | Oil & Gas Operator | Jan 1987 |
| 28680 | Texas Eastern Transm. Corp. | | Oil & Gas Operator | Dec 2002 |
| 28681 | Texas Energen Inc. | Austin, TX 78731 | Oil & Gas Operator | Jul 2026 |
| 28682 | Texas Energies I | | Oil & Gas Operator | Aug 1994 |
| 28683 | Texas Energies Inc | Pratt, KS 67124 | Oil & Gas Operator | Aug 1998 |
| 28684 | Texas Energy & Environmental Inc | Houston, TX 77269 | Oil & Gas Operator | Oct 1998 |
| 28685 | Texas Energy Mutual LLC | Grapevine, TX 76051-8145 | Oil Operator | Jun 2018 |
| 28686 | Texas Energy Operations, LC | Wichita Falls, TX 76301 | Oil & Gas Operator | Jul 2026 |
| 28687 | Texas Energy Sources, Inc. | Midland, TX 79708 | Oil & Gas Operator | Mar 2008 |
| 28688 | Texas Energy Trust Company | Midland, TX 79701 | Oil & Gas Operator | Jun 2016 |
| 28689 | Texas Exploration & Prod. Co. | Gainesville, TX 76240 | Oil & Gas Operator | Apr 1996 |
| 28690 | Texas Fuel Company | Galveston, TX 77550 | Oil & Gas Operator | Jul 2026 |
| 28691 | Texas Gas Exploration Corp. | | Oil & Gas Operator | Nov 1986 |
| 28692 | Texas Gas Resources, Inc. | Houston, TX 77292 | Oil & Gas Operator | Jul 2009 |
| 28693 | Texas Gas Transmission Corp. | | Oil Operator | Aug 2003 |
| 28694 | Texas Gas Transmission, LLC | Owensboro, KY 42301 | Oil & Gas Operator | Dec 2024 |
| 28695 | Texas General Petroleum Corp | | Oil & Gas Operator | Aug 1984 |
| 28696 | Texas Green Energy Services LLC | Richmond, TX 77407 | Oil Operator | Jul 2026 |
| 28697 | Texas Gulf Gas Corporation | Fayetteville, TX 78940 | Oil & Gas Operator | Jun 2005 |
| 28698 | Texas Hydrogen Energy Corp. | Midland, TX 79702 | Oil & Gas Operator | May 1999 |
| 28699 | Texas Ind. Exploration, Inc. | | Oil & Gas Operator | Oct 2001 |
| 28700 | Texas Independent Explor LTD. | Houston, TX 77024 | Oil & Gas Operator | Jul 2026 |